tens of thousands of years; eternity
Emphatic expression for an immensely long time, stronger than 万年. Often used in hyperbolic or poetic contexts to mean 'forever'.
See also: 万年
This tradition feels as if it has continued for tens of thousands of years.
Even after an eternity, its brilliance will not fade.
Standard kanji spelling; literally 'ten-thousand ten-thousand years'.
Alternate spelling using the iteration mark 々.
Reduplication of 万 (ten thousand) and 年 (year), literally 'ten-thousand ten-thousand years', used for hyperbolic emphasis.